Imported existing sources
This commit is contained in:
0xFEEDC0DE64
24
DbPathFinder.pro
Normal file
24
DbPathFinder.pro
Normal file
@ -0,0 +1,24 @@
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QT += core gui widgets
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DBLIBS +=
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TARGET = pathfinder
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PROJECT_ROOT = ..
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SOURCES += main.cpp \
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mywidget.cpp \
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mainwindow.cpp
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HEADERS += \
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mywidget.h \
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mainwindow.h
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FORMS += \
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mainwindow.ui
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RESOURCES +=
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TRANSLATIONS +=
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include($${PROJECT_ROOT}/app.pri)
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17
main.cpp
Normal file
17
main.cpp
Normal file
@ -0,0 +1,17 @@
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#include <QApplication>
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#include <qglobal.h>
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#include <QDateTime>
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#include "mainwindow.h"
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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qsrand(QDateTime::currentMSecsSinceEpoch());
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MainWindow mainWindow;
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mainWindow.show();
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return app.exec();
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}
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114
mainwindow.cpp
Normal file
114
mainwindow.cpp
Normal file
@ -0,0 +1,114 @@
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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include <QTimer>
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#include <QMessageBox>
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MainWindow::MainWindow(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::MainWindow)
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{
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ui->setupUi(this);
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ui->widget->reset(ui->spinBoxColumns->value(), ui->spinBoxRows->value());
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m_timer = new QTimer(this);
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m_timer->setInterval(1000/30);
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connect(ui->pushButtonReset, &QAbstractButton::pressed, this, &MainWindow::reset);
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connect(ui->pushButtonStep, &QAbstractButton::pressed, this, &MainWindow::step);
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connect(ui->pushButtonAnimate, &QAbstractButton::pressed, this, &MainWindow::animate);
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connect(ui->pushButtonSolve, &QAbstractButton::pressed, this, &MainWindow::solve);
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connect(m_timer, &QTimer::timeout, this, &MainWindow::timeout);
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}
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MainWindow::~MainWindow()
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{
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delete ui;
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}
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void MainWindow::reset()
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{
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ui->widget->reset(ui->spinBoxColumns->value(), ui->spinBoxRows->value());
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ui->widget->repaint();
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ui->pushButtonStep->setEnabled(true);
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ui->pushButtonAnimate->setEnabled(true);
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ui->pushButtonSolve->setEnabled(true);
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}
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MyWidget::Result MainWindow::step()
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{
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auto result = ui->widget->compute();
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ui->widget->repaint();
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switch(result)
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{
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case MyWidget::Result::Solved:
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solved();
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break;
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case MyWidget::Result::NotSolvable:
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notSolvable();
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break;
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}
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return result;
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}
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void MainWindow::animate()
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{
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ui->spinBoxColumns->setEnabled(false);
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ui->spinBoxRows->setEnabled(false);
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ui->pushButtonReset->setEnabled(false);
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ui->pushButtonStep->setEnabled(false);
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ui->pushButtonAnimate->setEnabled(false);
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ui->pushButtonSolve->setEnabled(false);
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m_timer->start();
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}
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void MainWindow::solve()
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{
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MyWidget::Result result;
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while((result = ui->widget->compute()) == MyWidget::Result::NotFinished);
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ui->widget->repaint();
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switch (result) {
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case MyWidget::Result::Solved:
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solved();
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break;
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case MyWidget::Result::NotSolvable:
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notSolvable();
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break;
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default:
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Q_UNREACHABLE();
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}
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}
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void MainWindow::timeout()
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{
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auto result = step();
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switch(result)
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{
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case MyWidget::Result::Solved:
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case MyWidget::Result::NotSolvable:
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m_timer->stop();
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ui->spinBoxColumns->setEnabled(true);
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ui->spinBoxRows->setEnabled(true);
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ui->pushButtonReset->setEnabled(true);
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break;
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}
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}
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void MainWindow::solved()
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{
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QMessageBox::information(this, tr("Found the optimal solution"), tr("The optimal solution was found and will be drawn in darker green."));
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ui->pushButtonStep->setEnabled(false);
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ui->pushButtonAnimate->setEnabled(false);
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ui->pushButtonSolve->setEnabled(false);
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}
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void MainWindow::notSolvable()
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{
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QMessageBox::warning(this, tr("No solution found"), tr("There is no solution!"));
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ui->pushButtonStep->setEnabled(false);
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ui->pushButtonAnimate->setEnabled(false);
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ui->pushButtonSolve->setEnabled(false);
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}
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35
mainwindow.h
Normal file
35
mainwindow.h
Normal file
@ -0,0 +1,35 @@
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#ifndef MAINWINDOW_H
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#define MAINWINDOW_H
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#include <QMainWindow>
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#include "mywidget.h"
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class QTimer;
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namespace Ui { class MainWindow; }
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class MainWindow : public QMainWindow
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{
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Q_OBJECT
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public:
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explicit MainWindow(QWidget *parent = 0);
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~MainWindow();
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private Q_SLOTS:
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void reset();
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MyWidget::Result step();
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void animate();
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void solve();
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void timeout();
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private:
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void solved();
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void notSolvable();
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Ui::MainWindow *ui;
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QTimer *m_timer;
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};
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#endif // MAINWINDOW_H
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116
mainwindow.ui
Normal file
116
mainwindow.ui
Normal file
@ -0,0 +1,116 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>MainWindow</class>
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<widget class="QMainWindow" name="MainWindow">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>600</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>MainWindow</string>
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</property>
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<widget class="QWidget" name="centralwidget">
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<layout class="QVBoxLayout" name="verticalLayout" stretch="0,1">
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout">
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<item>
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<widget class="QSpinBox" name="spinBoxColumns">
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<property name="minimum">
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<number>5</number>
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</property>
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<property name="maximum">
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<number>500</number>
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</property>
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<property name="value">
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<number>50</number>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QSpinBox" name="spinBoxRows">
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<property name="minimum">
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<number>5</number>
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</property>
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<property name="maximum">
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<number>500</number>
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</property>
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<property name="value">
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<number>50</number>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="pushButtonReset">
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<property name="text">
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<string>Reset</string>
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</property>
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</widget>
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</item>
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<item>
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<spacer name="horizontalSpacer">
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<property name="orientation">
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<enum>Qt::Horizontal</enum>
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</property>
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<property name="sizeHint" stdset="0">
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<size>
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<width>40</width>
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<height>20</height>
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</size>
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</property>
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</spacer>
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</item>
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<item>
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<widget class="QPushButton" name="pushButtonStep">
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<property name="text">
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<string>Step</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="pushButtonAnimate">
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<property name="text">
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<string>Animate</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QPushButton" name="pushButtonSolve">
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<property name="text">
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<string>Solve</string>
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</property>
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</widget>
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</item>
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</layout>
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</item>
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<item>
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<widget class="MyWidget" name="widget" native="true"/>
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</item>
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</layout>
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</widget>
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<widget class="QMenuBar" name="menubar">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>22</height>
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</rect>
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</property>
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</widget>
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<widget class="QStatusBar" name="statusbar"/>
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</widget>
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<customwidgets>
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<customwidget>
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<class>MyWidget</class>
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<extends>QWidget</extends>
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<header>mywidget.h</header>
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<container>1</container>
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</customwidget>
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</customwidgets>
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<resources/>
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<connections/>
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</ui>
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197
mywidget.cpp
Normal file
197
mywidget.cpp
Normal file
@ -0,0 +1,197 @@
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#include "mywidget.h"
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//#define ACUTE_ANGLE
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#include <QTimer>
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#include <QPainter>
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#include <QDebug>
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#include <QLine>
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#include <QLineF>
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#include <QMessageBox>
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MyWidget::MyWidget(QWidget *parent) :
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QWidget(parent),
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m_start(Q_NULLPTR),
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m_end(Q_NULLPTR)
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{
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}
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void MyWidget::reset(int columns, int rows)
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{
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m_nodes.resize(rows);
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for(int y = 0; y < rows; y++)
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m_nodes[y].resize(columns);
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for(int y = 0; y < m_nodes.count(); y++)
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for(int x = 0; x < m_nodes.at(y).count(); x++)
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{
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Node &node = m_nodes[y][x];
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node.wall = !(x == 0 && y == 0) &&
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!(x == m_nodes.at(y).count() -1 && y == m_nodes.count() - 1) &&
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qrand() < RAND_MAX / 3;
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node.x = x;
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node.y = y;
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node.connections.clear();
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node.f = 0;
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node.g = 0;
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node.h = 0;
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node.previous = 0;
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}
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for(const auto &vector : m_nodes)
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for(const auto &node : vector)
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{
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if(node.wall)
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continue;
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auto x = node.x;
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auto y = node.y;
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if(x > 0 && !m_nodes.at(y).at(x - 1).wall)
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m_nodes[y][x].connections.append(&m_nodes[y][x - 1]);
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if(x < m_nodes.at(y).count() - 1 && !m_nodes.at(y).at(x + 1).wall)
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m_nodes[y][x].connections.append(&m_nodes[y][x + 1]);
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if(y > 0 && !m_nodes.at(y - 1).at(x).wall)
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m_nodes[y][x].connections.append(&m_nodes[y - 1][x]);
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||||
if(y < m_nodes.count() - 1 && !m_nodes.at(y + 1).at(x).wall)
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m_nodes[y][x].connections.append(&m_nodes[y + 1][x]);
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||||
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#ifdef ACUTE_ANGLE
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if(x > 0 && y > 0 && !m_nodes.at(y - 1).at(x - 1).wall && !m_nodes.at(y).at(x - 1).wall && !m_nodes.at(y - 1).at(x).wall)
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m_nodes[y][x].connections.append(&m_nodes[y - 1][x - 1]);
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||||
if(x < m_nodes.at(y).count() - 1 && y > 0 && !m_nodes.at(y - 1).at(x + 1).wall && !m_nodes.at(y).at(x + 1).wall && !m_nodes.at(y - 1).at(x).wall)
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||||
m_nodes[y][x].connections.append(&m_nodes[y - 1][x + 1]);
|
||||
if(x > 0 && y < m_nodes.count() - 1 && !m_nodes.at(y + 1).at(x - 1).wall && !m_nodes.at(y).at(x - 1).wall && !m_nodes.at(y + 1).at(x).wall)
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||||
m_nodes[y][x].connections.append(&m_nodes[y + 1][x - 1]);
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||||
if(x < m_nodes.at(y).count() - 1 && y < m_nodes.count() - 1 && !m_nodes.at(y + 1).at(x + 1).wall && !m_nodes.at(y).at(x + 1).wall && !m_nodes.at(y + 1).at(x).wall)
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||||
m_nodes[y][x].connections.append(&m_nodes[y + 1][x + 1]);
|
||||
#endif
|
||||
}
|
||||
|
||||
m_start = &m_nodes.constFirst().constFirst();
|
||||
m_end = &m_nodes.constLast().constLast();
|
||||
|
||||
m_openSet = { m_start };
|
||||
m_closedSet.clear();
|
||||
m_result.clear();
|
||||
}
|
||||
|
||||
MyWidget::Result MyWidget::compute()
|
||||
{
|
||||
if(m_openSet.count())
|
||||
{
|
||||
int lowestFIndex = 0;
|
||||
for(int i = 1; i < m_openSet.count(); i++)
|
||||
if(m_openSet.at(i)->f < m_openSet.at(lowestFIndex)->f)
|
||||
lowestFIndex = i;
|
||||
|
||||
auto current = m_openSet.at(lowestFIndex);
|
||||
|
||||
{
|
||||
auto test = current;
|
||||
m_result.clear();
|
||||
do
|
||||
{
|
||||
m_result.append(test);
|
||||
test = test->previous;
|
||||
}
|
||||
while(test);
|
||||
}
|
||||
|
||||
if(current != m_end)
|
||||
{
|
||||
m_openSet.removeAll(current);
|
||||
m_closedSet.append(current);
|
||||
|
||||
for(const auto &neighbour : current->connections)
|
||||
{
|
||||
if(!m_closedSet.contains(neighbour))
|
||||
{
|
||||
auto increasedG = current->g +
|
||||
#ifdef ACUTE_ANGLE
|
||||
QLineF(current->x, current->y, neighbour->x, neighbour->y).length();
|
||||
#else
|
||||
qAbs(current->x - neighbour->x) + qAbs(current->y - neighbour->y);
|
||||
#endif
|
||||
bool newPath = false;
|
||||
|
||||
if(m_openSet.contains(neighbour))
|
||||
{
|
||||
if(increasedG < neighbour->g)
|
||||
newPath = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
newPath = true;
|
||||
m_openSet.append(neighbour);
|
||||
}
|
||||
|
||||
if(newPath)
|
||||
{
|
||||
m_nodes[neighbour->y][neighbour->x].g = increasedG;
|
||||
m_nodes[neighbour->y][neighbour->x].h =
|
||||
#ifdef ACUTE_ANGLE
|
||||
QLineF(neighbour->x, neighbour->y, m_end->x, m_end->y).length();
|
||||
#else
|
||||
qAbs(neighbour->x - m_end->x) + qAbs(neighbour->y - m_end->y);
|
||||
#endif
|
||||
m_nodes[neighbour->y][neighbour->x].f = neighbour->g + neighbour->h;
|
||||
m_nodes[neighbour->y][neighbour->x].previous = current;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
return Result::Solved;
|
||||
}
|
||||
else
|
||||
return Result::NotSolvable;
|
||||
|
||||
return Result::NotFinished;
|
||||
}
|
||||
|
||||
void MyWidget::paintEvent(QPaintEvent *event)
|
||||
{
|
||||
Q_UNUSED(event)
|
||||
|
||||
if(!m_nodes.count())
|
||||
return;
|
||||
|
||||
QPainter painter(this);
|
||||
|
||||
painter.setPen(Qt::NoPen);
|
||||
|
||||
auto boxHeight = height() / m_nodes.count();
|
||||
|
||||
for(const auto &vector : m_nodes)
|
||||
{
|
||||
auto boxWidth = width() / vector.count();
|
||||
|
||||
for(const auto &node : vector)
|
||||
{
|
||||
if(m_result.contains(&node))
|
||||
painter.setBrush(Qt::darkGreen);
|
||||
else if(m_closedSet.contains(&node))
|
||||
painter.setBrush(Qt::red);
|
||||
else if(m_openSet.contains(&node))
|
||||
painter.setBrush(Qt::green);
|
||||
else if(node.wall)
|
||||
painter.setBrush(Qt::black);
|
||||
else
|
||||
continue;
|
||||
|
||||
painter.drawRect(node.x * boxWidth, node.y * boxHeight, boxWidth, boxHeight);
|
||||
}
|
||||
}
|
||||
|
||||
painter.setPen(Qt::blue);
|
||||
|
||||
for(const auto &vector : m_nodes)
|
||||
{
|
||||
auto boxWidth = width() / vector.count();
|
||||
|
||||
for(const auto &node : vector)
|
||||
for(const auto &otherNode : node.connections)
|
||||
painter.drawLine((node.x * boxWidth) + (boxWidth / 2), (node.y * boxHeight) + (boxHeight / 2), (otherNode->x * boxWidth) + (boxWidth / 2), (otherNode->y * boxHeight) + (boxHeight / 2));
|
||||
}
|
||||
}
|
||||
51
mywidget.h
Normal file
51
mywidget.h
Normal file
@ -0,0 +1,51 @@
|
||||
#ifndef MYWIDGET_H
|
||||
#define MYWIDGET_H
|
||||
|
||||
#include <QWidget>
|
||||
#include <QVector>
|
||||
|
||||
class QTimer;
|
||||
|
||||
class MyWidget : public QWidget
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
public:
|
||||
enum class Result
|
||||
{
|
||||
NotFinished,
|
||||
Solved,
|
||||
NotSolvable
|
||||
};
|
||||
|
||||
explicit MyWidget(QWidget *parent = Q_NULLPTR);
|
||||
void reset(int columns, int rows);
|
||||
Result compute();
|
||||
|
||||
protected:
|
||||
void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
|
||||
|
||||
private:
|
||||
struct Node {
|
||||
bool wall;
|
||||
int x;
|
||||
int y;
|
||||
QVector<const Node *> connections;
|
||||
|
||||
//algorithm specific
|
||||
qreal f;
|
||||
qreal g;
|
||||
qreal h;
|
||||
const Node *previous;
|
||||
};
|
||||
|
||||
QVector<QVector<Node> > m_nodes;
|
||||
|
||||
QVector<const Node *> m_openSet;
|
||||
QVector<const Node *> m_closedSet;
|
||||
const Node *m_start;
|
||||
const Node *m_end;
|
||||
QVector<const Node *> m_result;
|
||||
};
|
||||
|
||||
#endif // MYWIDGET_H
|
||||
Reference in New Issue
Block a user